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207942

Sigma-Aldrich

Hydrazine monohydrate

N2H4 64-65 %, reagent grade, ≥97%

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Synonym(s):
Hydrazinium hydroxide
Linear Formula:
NH2NH2 · H2O
CAS Number:
7803-57-8
Molecular Weight:
50.06
Beilstein:
878137
EC Number:
206-114-9
MDL number:
MFCD00149931
UNSPSC Code:
12352300
PubChem Substance ID:
24852482
NACRES:
NA.21

grade

reagent grade

Quality Level

100

vapor density

>1 (vs air)

vapor pressure

5 mmHg ( 25 °C)

Assay

≥97%

form

liquid

composition

N2H4, 64-65%

expl. lim.

99.99 %

refractive index

n20/D 1.428 (lit.)

pH

10.6-10.7 (10 g/L)

bp

120.1 °C (lit.)

mp

−51.7 °C (lit.)

density

1.032 g/mL at 25 °C (lit.)

SMILES string

O.NN

InChI

1S/H4N2.H2O/c1-2;/h1-2H2;1H2

InChI key

IKDUDTNKRLTJSI-UHFFFAOYSA-N

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General description

Crystals of hydrazine monohydrate exhibit triclinic crystal system and space group P3121.

Application

Hydrazine monohydrate has been used to synthesize 2-(6-ethylamino-3-ethylimino-2,7-dimethyl-3H-xanthen-9-yl)benzoic acid hydrazide and vinyl-benzylamine hydrochloride. It may also be used as a source of hydrogen via decomposition in the presence of supported bimetallic catalyst composed of Ni-Pt alloy nanoparticles and mesoporous CeO2 support.
Hydrazine monohydrate may be used as a reducing agent for the reduction of:
  • Nitroarenes in the presence of hydrogen peroxide functionalized carbon nanotubes.
  • 4-Iodo-3-nitroanisole to form 2-iodo-5-methoxyaniline.
  • Graphene oxide (GO) to form graphene.

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Signal Word

Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B - Skin Sens. 1

WGK

WGK 3

Flash Point(F)

closed cup

Flash Point(C)

closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

易制爆化学品
危险化学品

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Convergent synthesis of the quinolone substructure of BILN 2061 via carbonylative Sonogashira coupling/cyclization.
Haddad N, et al.
The Journal of Organic Chemistry, 71(13), 5031-5034 (2006)
Carbon nanotubes oxidized by a green method as efficient metal-free catalysts for nitroarene reduction.
Wu S, et al.
Physical Chemistry Chemical Physics, 17(3), 1567-1571 (2015)
Yuan-Yuan Jiang et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 21(43), 15439-15445 (2015-10-17)
The development of active, selective, and robust catalysts is a key issue in promoting the practical application of hydrazine monohydrate (N2 H4 ⋅H2 O) as a viable hydrogen carrier. Herein, the synthesis of a supported Ni-Pt bimetallic nanocatalyst on mesoporous
The crystal structure of hydrazine monohydrate.
Liminga R and Olovsson I.
Acta Crystallographica, 17(12), 1523-1528 (1964)
Young-Keun Yang et al.
Nature protocols, 2(7), 1740-1745 (2007-07-21)
This protocol describes detailed procedures for the preparation of a rhodamine-based mercury probe and for its applications to the detection of mercury in cells and vertebrate organisms. The mercury probe 1, which is prepared in two steps from rhodamine 6G
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